Snap-switch.



(No Modal.)

WITNESSES:

A. SUNDH. sNAP SWITCH.

(Applicaition filed July 31, 1901.)

Patented Jan. 23, I902.

4 Sheets-Sheet I.

IN VENT0R rBY' LATTORN v glTNESSES j I V (741% I I I z W I No. s92,2|7. Patented Jan. 28, I902.

A; suunn.

SNAP SWITCH,

(Application filed ma 31, 1901.)

(No Model.) 4 Sheets-Sheet 2.

' ATTORNEY No.'692,2l7. A Pa tent edila n. 28, I902.

-. A. suunn.

SNAP SWITCH.

' (Application filed July 31, 1901.) (No Model.) v a 4 sheets-sheet a.

WITNESSES: INVENTOR ATTORNEY No. 692,2l7. Patented Ian. 28, I902.

A; sunnu.

SNAP SWITCH.

(Application filed July 31, 1901.

4 Shaets8haat 4.

(No Model.)

v INVENTOR ATTORNEY UNITED. STA E AUGUST SUNDII, OF Yo'NKERsNEW YORK, ASSIGNOR To riLEcrRI'r coir:

' PANY, or NEWYORK,

SNAP-SWiTQH.

SPECIFICATION forming part; Letters Patent no.

I I dpplication filed Jul -31,1901.

To all whom/ it mag concern I Be it known that zen of the United 1, AUGUST snubs, a citi- States of America, and a "resident of Yonkers, county of W estchester,

- both the opening and closing movements. My invention is not tain new and useful and State of New York, have invented cer- Improvements in Snap- Switches', of'which the following is a specificationr j v. I

' yinvention relates to the means for causing resistance by the switch-for accumulation:

of power in the switch-operating device'for eifective snap action of the switch on release of-the switch from the retaining or resisting device in what are known as snapswitches, in which it is for well-known rea-' sons desirable to employ such resistance in designed for operating. the switch for opening and=closing-i t, butis an improvement in ing of appliances to the switch whereby the switch may be respectively held in both.ot

the positions it occupies when at rest by magthe magnetic'inflnences,

snap action when let 'free to avoid or at least materially reduce desirable means than the mechanical contrivnetic influences to restrain the operating device for accumulation of force to overcome and thus have quick the'sparks, such being more ances now employed for the same. purpose.

My invention also consists i the adapta-.- tion of such magnet to blow out the arcs of the circuit closing and opening contacts, as hereinafter described, reference being made to the accompanying drawings, in which- Figure 1 is a side elevation of one form of switch inwhichmy improvements are rep-' resented with parts in positions illustrative of vice to be controlled.

the shiftingoperation. Fig. 2 is a front elevation, and in addition thereto it .represents a vertical section of a solenoid-magnet as the device to be controlled by the 3 is a side elevation of another form of switch embodying the said improvements and also showing an electric-light system as the de- Fig. 4 is a plan view ."of the apparatus represented in Fig. 3. Fig.

to be controlled. Fig.

5 is a vertical section of another form of switch with my improvements applied and 6; represents a permasnap-switches, consistactuating devices for amount of force which when let go effects the; quick'transfer of the switch, that is desirable V e, in such relation to switch; Fig.

also showing a solenoidrmagnet asthe object 692,217, dated January 28, 1902. Serial No. 70,424. (No model.) I

In Figs. 1 and 2', opening and closing through contacts pivotb in the usual manner, said switch beiug'in this case operated by a 'leversk pivoted atl to a block integral part of handle j,

the electric circuit and said levers are connected to each other by a spring: 0 for storing power in the spring preparatory to the release of the switch ing it thereafter. bear against opposite sides of the switch at m,-preferably by bear against lugs 10 of the p power of the handle j throughgone. lever'for pulling the otherlever by the spring to throw from one position to the other. This,'however, does not constitute the invention that Iclai-m. It is merely illustrative sented inthis case for operating the switch. As previously stated, I employ magnetic appliauces whereby magnetic influences may be utilized in lieu-of the. mechanical apparatus respective positions and resisting the switchthe accumulation of an for minimizing thearcs. To this end I arrange a magnet ofany suitable character, as

position of the switch it will be subject nent magnet such as may be used together" with parts of the switch represented in Fig. 5. a represents the switch for f g h by swinging on its' handlej, with v 1;, which is an for quickly throw-f The free ends of levers 7c.

heretofore. used for holding the switch hits to t e attractive inflne'nce'of the magnet and be he d means of; friction rollers'. Said levers carry temper-screws -q, which block to'appl'y the of the means repretheswitch that in either I it is helduforthe accumulationof orce to I It will be noticedthg too proximityto the contactsf, ,and h to serve] at the same time as ablow-outmagnet for V e the switch when the contacts are to be shifted disrupting the arcs to which they are subject to some extent even in a quick-acting snapswitch. The magnet may be a permanent hard-steel magnet, such as a Fig. 6, or one pole or a part of it, as the attached pole-piece (1, Figs. 1 and 2. Also the attached pole-piece (Z Fig. 5, may be of hard steel for retaining the magnetism for holding the switch in the open position when the electric circuit is broken, and the otherthe one for blowing out the arcsmay be of soft iron, if so pre- 1' erred, such magnets being of the character shown in Figs. 1 to 5, inclusive, consisting of a core a and a wire-spool s and connected in the electric circuit 1- 11., in which the switch is used, or any other form of magnet suitable for the purpose may be employed. The wirespool is employed and connected in the circuit to magnetize the soft-iron part of the core and to restore the magnetism of the permanent magnet or the permanent part, which lose their magnetism in time. The solenoidmagnet 11 is indicated merely as theelectric device to be controlled by the switch.

In Figs. 3 and 4 practically the same application of my invention is represented in connection with a switch to be operated by push-studs, as F: and z, the said switch comprising yoke members a, pivoted at b and carrying bars 7' on opposite sides, respectively, of the poles c d, with circuit closing and opening contacts in. The push-studs act on the switch through the rock-lever 'n', pivoted at w, between one arm of which and the yoke members, respectively, of the switch is a spring y, through which the power ofthe push-studs is transmitted for first accumulating force and then quickly shifting the switch, as in other described apparatus. The proximity of the magnet-pole c to the contacts t it illustrates in'this case the'blow-out function of the switch-controlling magnet. An electric-light system c is shown in connection with this switch as the device to be magnet-poles. The pole c carries an attached controlled by the switch. In this case, however, ,1 have not represented the hardened attached pole-piece; but it is to be understood that its application will here be the same as in Figs. 1,2, and 5.

In Fig. 5 I illustrate the application of my invention to another form of switch. a is the switch-lever; t, u, and v, the contacts of the circuit w m to be opened and closed; 0 and 01 the poles ofthe magnet e for controlling the switch, and a the spring for throwing the switch when released from the contacts of the hardened-steel piece 01 to hold the switch when the circuit through spool s is broken.

The spool s is used in this case for the'same purpose as in Figs. 1 and 2. Theblow-out arrangementis omitted in this case; but it is obvious that the pole-piece d may be so placed relatively to the switch-contacts for eflfect in this purpose. In this particular form of switch the actuator consists of a fluctuating water column 3, or it may be compressed air operating a float 4, connected to the switch by the float-standard 5; but, as in the other example shown, it is not the apparatus of the switch that is the subject of the claims, these being represented merely to illustrate the general application of the invention. The solenoid-motor 1: here shown is again introduced merely as the object to be controlled by the switch. 5 r

In Fig. 6 a hard-steel permanent magnet is represented ,but without the wire-spool, which may be omitted in the case of small apparatus, especially when the poles are close together,-as here shown, as alike applicable for my purpose and is arranged in connection with parts of like switch apparatus, as shown in Fig. 5; but it may of course be used with any form of snap'switch.

In Figs. 1, 2, and 5 the switch is arranged between the poles of the magnet, so as to shift from one to the other, and the pole on which the switch bears when the circuit is broken,

and consisting of the permanently magnetic piece bet ore described, is arranged adjustably toward and from the other pole to vary the effect of the magnetic action for regulating the action of the switch, which must be care fully graduated for successful operation.

Some of the advantages of my improvement are simpler and cheaper construction, less liability to get out of order, and particularly more positive, uniform, and reliable operation, and it afiords convenient application of a blow-out magnet without specially providing it.

What I claim as my invention is- 1. The combination with the switch bar or lever and the means for shifting said baror lever, of a. magnetwith its poles adapted for holding the bar in its open and closed positions respectively by magnetic influences for causing the snap action in both directions.

2. The combination with the switch bar or lever, and the means for shifting said bar or lever, of a magnet with its poles adapted for holding the bar in the open and closed posi* tions respectively, for causing the snap action in both directions, said bar being arranged to vibrate between the two poles of the magnet, one of said poles being a permanent magnet to hold the said bar or lever in 'the open posit'ion.

3. The combination with the switch bar or lever and the meansfor shifting said bar or lever, of a magnet with pole-pieces'adapted for holding the bar in the open and closedpositions for causing the snap action, said bar arranged to vibrate between the two poles of the'magnet, one of said poles being a permanent magnet to hold the said bar or lever in the open position, and means to vary the distance between the poles to vary the effect of the ma etic action.

4. p T e combination with a pivoted switch baror lever and means for shifting said bar or lever, of a magnet with pole-pieces adapted for holding thebar or lever in its open and closed positions respectively by magnetic influences for causing thes'nap action in both directions, said means for shifting said bar or lever consisting of levers bearing at one end on opposite sides respectively'of said bar or lever, and pivoted on a support having rotating movement on theaxis of said bar or lever and being connected together by a tension-'- spring, temper-screws and stops on said support limiting the'movement of said levers in the direction of said bar or lever, and means for imparting rotatory movement to said support.

5. The combination with the switch bar or lever'and the means for shifting said bar or lever, of a magnet with pole-pieces adapted for holding the bar by magnetic influence of I its respective poles in itsopen and closed pothe poles of sitions respectively for resistance to the shifting device, to cause the snap action, one of said magnet arranged with relation to the circuit-closing contacts for blowing out the arcs.

v lever in its 6. The combination with the switch bar or lever, and a permanent magnet, said magnet having poles adapted for holding the bar or open and closed positions respectively,.'oE' a wire-spool connected in the cirv cuit to restore the waste of magnetism froni the magnet.

7. The combination with the switch bar or lever, of a magnet having one polepf hard steel and one of soft iron, the poles of said magnet adapted for holding the bar in its open and closed positions respectively, of a wire-spool connected in the-electric circuit,

to restore the magnetism of gradual loss in the hard pole and to generate magnetism in the soft-iron pole. i

8. The combination with the switch bar or lever, of a magnet having one of its poles con-r open' and closed positions x pole and tomagnetize'the other poie. Signedat New York city this 26th day of if July, 1901.- I AUGUST 'SUNDH; Witnesses: i

A. P. THAYER, 0. SEDGWICK. 

